Fixed action pattern
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In ethology, a fixed action pattern (FAP) is a complex behavioral sequence that is indivisible and runs to completion. FAPs are invariant and are produced by the innate releasing mechanism that responds to a sign stimulus.
Examples
A mating dance may be used as an example. Many species of birds engage in a specific series of elaborate movements, usually by a brightly colored male. How well they perform the "dance" is then used by females of the species to judge their fitness as a potential mate. The key stimulus is typically the presence of the female.See also
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